Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Qual bicicleta teve menos de 23 voltas e um número de grade de 4?
 ###Tabelas: CREATE TABLE composition_of_the_7th_seanad (composition_of_the_7th_seanad_id AUTO_INCREMENT PRIMARY KEY, Administrative Panel INT, Agricultural Panel INT, Cultural and Educational Panel INT, Industrial and Commercial Panel INT, Labour Panel INT, National University of Ireland INT, University of Dublin INT, Nominated by the Taoiseach INT, Total INT) CREATE TABLE national_team_players_in_season_1946_47 (national_team_players_in_season_1946_47_id AUTO_INCREMENT PRIMARY KEY, name VARCHAR, pos. VARCHAR, caps INT, goals INT, club VARCHAR) CREATE TABLE superbike_race_1_classification (superbike_race_1_classification_id AUTO_INCREMENT PRIMARY KEY, Rider VARCHAR, Bike VARCHAR, Laps INT, Time VARCHAR, Grid INT) CREATE TABLE season_2_1995–1996 (season_2_1995–1996_id AUTO_INCREMENT PRIMARY KEY, Series # INT, Season # INT, Title VARCHAR, Directed by VARCHAR, Original air date VARCHAR, Production code VARCHAR) CREATE TABLE grand_slam_women's_doubles_performance_timeline (grand_slam_women's_doubles_performance_timeline_id AUTO_INCREMENT PRIMARY KEY, Tournament VARCHAR, 2007 VARCHAR, 2010 VARCHAR, 2011 VARCHAR, 2012 VARCHAR, 2013 VARCHAR)  
SELECT Bike FROM superbike_race_1_classification WHERE Laps < 23 AND Grid = 4